A pipeline has a constant diameter. A length AB of the pipeline is 250 m and rises 60m from point A to point B. The pressure at A is 320 kPa and at B 200kPa. A pump is installed somewhere between A and B in the pipeline, the inlet and outlet pressures being -21kPa and 670 kPa, respectively. Determine the pressure head loss in the pipe per 100 m pipe length.